Plow hitch



A ril 16, 1935. H. TONJES, JR 1,

PLOW HITCH Filed April 17, 1934 3 Sheets-Sheet l N Inventor v I Henry Toff/k5 (17 1 April 16, 1935.

H. TONJES, JR

PLOW HITCH Filed April 17, 19:54

3 Sheets-Sheet .2

Invenlor Henry T'onjs,

April 16, 1935. H. TONJES; JR 1,998,032

PLOW HITCH Fi1ed April. 17 1954 s sheets-sheets I 'rwentor Henry Tonjs', :75. I

Attorney Patented Apr. 16 1935 f v i I I UNITED STATES P-A'EENTQFFHE I 7 1,998,032 1 v PLow nrron 7 Henry Tonjes Jn, Wisner, Nebr, Application April17, 1934, Serial No. 721,017 'I 4 Claims. (01. 280-33A4) r V r This invention relates to a plow hitch which is hole and the bolt passes through the same. A mainlycdesigned for attaching plows to atractor, cross bar 9 has its central portion passing bethe general object of the invention being to so tween the bar l and the other offsetend part form the hitch that theplow remains in the furf the b r 5 n a bolt it passes through these 5 row in all kinds of ground and will not maketoo Parts and as a bushing ii thereon'whichis lobig a furro a d th plow ill k l cated in a central hole I2 in the cross bar 5. sweep around corners and eliminate the extra A pa f de b s 3 connects the ends of the plowing of corners which packs the ground. The Cross bar 9 Within? Wide I and e bar 53 device will also cause the plow to plow closer to has a hole 54 in one end receiving a bolt th ends of t p of ground, when t ground is which also passes through one of the holes 2 and 10 '25 Figure 3 is a viewofthefront end bar.

, Figure 7 is a section on line 1-! of Figure 1.

being plowed in'strips, than is possible'with the the other end of each b is formed with a type of hitch now in l longitudinally extending row of holes iii, any one This invention also consists in certain other Q is adapted to receive a bolt wh features of construction and in the combination passes through a Slot formedat each end of andarrangement of the several parts, to be here: bar All of the f a adapted i 15 inafter fullydescribed, illustrated in theaccomce 1ve bushmgs as Shown Flgm'es 5 and "1 As panymg drawings, and Specifically pointed Gut in will be seen, the center bar 4 extends a conslderthe appended claims. V abledistance beyond the cross bar 9 and has a I In describing the invention in detail, reference hole w, augment the end thereof" r will be had to the accompanying drawings where- As W111 be mtderstood h to e in like characters denote like or corresponding d of clevls the hke Winch 1S 'cmlmcttd parts throughout the several views, and in which: wlth the tractor a h holes 3 of Wlde a 1 Figure l is a top planview of the invention. I i im to recelvel the Connectmg means F gure 2 is a view'of one of th ide b r l e 5 Ms A sprlng'zil has its ends connected with the bars i3 and extends across the bar 4 Figure 4 is an edge vlew of F1 ure 1. V Figure 5 is a Section onelinesis of Figure 1. Thebolts'l, in, IS and IT formpivots and the Figure 6 is a bottom plan View 0f thecenter pluralitysof holes .2 and 3 permit adjustment of member a the bars 4', 9 and It in accordance with the width.

of the tractor, the Width ofthe'plows and the Figures 8 9 10 and 11 arn diagrammatic plan number of plows being used, it being understood 1 l g that in devices of this nature a wheel of the gi y z ir gfi hggg is fg g zg 3225 22 122: tractor runs in a previously formed furrow. Thus,

J Y for instance, if but a few plows are being used,

tors d fi F- P T of Q theframe composed of the bars 4, 9 and I3 can F gure 1215 a similar view showing the position be adjusted closer to one of the bar of the Parts whelfa tum 15 being made; 7 than the other end and the plows attached to n these lf h nflmeral 1 mdmtes a said bar in such .a position that the strain is wide bar having a longitudinally extend ng row equally distributed to e fr m 7 of large holes 2 adjacent one edge thereof and corners, when the tractortakes the turn, the 40 longitudinally extending row of smaller holes 3 bat-S 4, '9 and tilt toward the tel-nee that the adjacent the other Side edge, these holes 3. 9 plows will continue tomove in a substantially sp c farther p t a e holes 2: and they straight line, as the tractor takes the ,turn and alternate w certain peirsiof e holes, as the slots is in the bar a and-the spring 20 facili- 5 Clearly ow i F e Center bar 3.1185 tate this movement of the-parts when a turn is the central portion of a short bar 5 connected being d rew t by 1 6 rivets morerclea'rly Shown As before stated, this hitch will keep the plows iII'FigU-IBS 4 and 5 and the end Parts Of this bar in the furrow in all kinds and conditions of 5 are offset d wnw y, With an d f One ground and will prevent the plows from making set portion passing under a part of the wide bar too big a furrow. It also causes the plows to I, with the adjacent end of the bar 4 resting on make a clean sweep around corners as the trac- 1 a part of the bar I, as shown in Figures 4 and 5. tor isturning and thus eliminates extra plowing A bolt 1 passes through the adjacent ends of the of corners which tends to pack the soil. Thus bars 4 and 5 and through one of the holes 2 of the hitch will enable a field to be plowed with the wide bar I and a bushing 8 is placed in the the tractor and plows going around and around 1 the field with the corners properly plowed. When plowing a field in strips, the plows will continue to the ends of the strips some time after the tractor is making the turn, thus leaving less ground unplowed.

The longitudinally extending slots I8 in the' bar 9 for receiving the pivot pins I1 permit a shorter turn to be made when the hitch is set toward one side, as when a pin I1 is located in one of the holes l8 of one bar I3 which is rearwardly of the hole in which the other. pin I1 is placed in the other bar I3. By adjusting the pins I? in the holes I6 of the two bars I3, the

device can be used on different widths of plows.

and different widths of tractors. For instance, when a narrow tractor is being used, the bar 9 can be tilted by adjusting the pins I 'I in the holes I6 of the two bars I3 so that the draw bar 4 is held in.a tilted position and thus one wheel of the tractor can run in a furrow, while the plows are plowing other furrows, one of which will be parallel to the furrow in which the tractor wheel is running. If a wide tractor is being used with a narrow gang of plows, then the bar 9 would be tilted in an opposite direction so that one wheel of the tractor can run in a furrow, while the plows will be close to the ground previously plowed. The spring 2% acts to adjust the pins l! in the slots I8 when a turn is being made and this hitch will permit the tractor and plows to be backed so that if the plows should stick, the tractor can be backed to clear the plows without lifting the plows.

Figure 8 shows a narrow tractor T having one wheel running in a previously formed furrow with two plows P attached to the bar I. In order to equalize the strain and cause. the plows to correctly plow the ground the members 13 and 4 are adjusted toward the right hand end of the bar I and the pivot bolts which connect the bar 9, with the bars I3 are placed in intermediate holes I5. When'three plows are attached to the bar I the members or bars I3 and 4 are shifted toward the left hand end of the bar I and the bar 9 tilted by having itsleft end pivoted by bolt I! in the outermost hole It of the left bar I3 and the pivot pin at the other end of the bar 9 in cheer the rear holes It so that the bar 4 slopes forwardly toward the furrow as shown in Figure 9. Figure 10 shows a wider tractor used with two plows and in this case the bars 4 "and I3 are placed toward the right hand end of the bar I and the bar 4 slightly tilts forwardly away from the furrow as shown in Figure 10. In Figure 11 awide tractor is shown as pulling three plows and the parts are centrally arranged as shown.

As before stated this invention provides a multiplicity of adjustments to suit the widthof'the tractor being used and the number and sizes of the plows attached to the hitch.

Figure 12 shows the position of the parts when the tractor is making a left turn, the bars 4 and I3 tilting toward the turn but the plows continuing to run straight, with the slots I8 for the pivot bolts I7 and the springZfl facilitating this movement of the parts when a turn is being made.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What is claimed is:-

' 1. A hitch of the class described comprising a wide bar having a longitudinally extending row of holes adjacent each side edge thereof, acenter bar, a pivot passing through one end thereof and any one of certain ones of the holes adjacentone side edge of the wide bar, a cross bar pivotally connected to the center bar intermediate the ends of the center bar and at the center of the cross bar, and a pair of bars pivotally connected to the ends of the cross bar and to the wide bar, the last mentioned pivot passing through certain of the holes in the last mentioned row of holes.

2. A hitch of the class described comprising a wide bar having a longitudinally extending row of holes adjacent each side edge thereof, a'center bar, a pivot passing through one end thereof and any one of certain ones of the holes adjacent one side edge of the wide bar, a cross bar pivotally connected to the center bar intermediate the ends of the center bar and at the center of the cross bar, a pair-oi" bars pivotally connected to the ends of the cross bar and to the wide bar, the last mentioned pivot passing through certain of the holes in the last mentioned row of holes, said side bars each having alongitudinally extending row of holes, any one of which is adapted to receive the pivots at the ends of the cross bar.

3. A hitch of the class described comprising a wide bar having a longitudinally extendingrow of holes adjacent each side edge thereof, a center bar, a pivot passing through one end thereof and anyone of certain ones of the holes adjacent one side edge of the wide bar, a cross bar pivotally connected to the center bar intermediate the ends of the center bar and at the center of the cross bar, a pair of bars pivotally connected to the ends of the cross bar and to the wide bar, the last mentioned pivot passing through certain of the holes in the last mentioned row of holes, and a short bar having an upwardlyoifset central portion fastened to a portion of the center bar, with one end part passing under the wide bar and receiving the pivot which connects thelcenter bar to said wide bar, the other end portion of the short bar passing under the cross bar and receiving the pivot which connects the cross bar with the center bar. 7

4. A hitch of the class described comprising a wide bar, a draw bar having one end pivoted to the wide bar, across bar having its central portion pivoted .to the draw bar intermediate the ends of said draw bar, said cross bar having longitudinally extending slots in its ends, a pair of side bars pivoted to the widebar and each having a longitudinally extending row of holes in its other end, and pivot pins passing through the slots into certain ones of said holes, and a spring connecting the side bars together. 7

HENRY TONJES, JR. 

